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Titlebook: An Introduction to Microscopy by Means of Light, Electrons, X-Rays, or Ultrasound; Theodore George Rochow,Eugene George Rochow Book 1978 S

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發(fā)表于 2025-3-21 16:28:09 | 只看該作者 |倒序瀏覽 |閱讀模式
期刊全稱An Introduction to Microscopy by Means of Light, Electrons, X-Rays, or Ultrasound
影響因子2023Theodore George Rochow,Eugene George Rochow
視頻videohttp://file.papertrans.cn/156/155360/155360.mp4
圖書封面Titlebook: An Introduction to Microscopy by Means of Light, Electrons, X-Rays, or Ultrasound;  Theodore George Rochow,Eugene George Rochow Book 1978 S
影響因子Many people look upon a microscope as a mere instrument(l); to them microscopy is instrumentation. Other people consider a microscope to be simply an aid to the eye; to them microscopy is primarily an expan- sion of macroscopy. In actuality, microscopy is both objective and sub- jective; it is seeing through an instrument by means of the eye, and more importantly, the brain. The function of the brain is to interpret the eye‘s image in terms of the object‘s structure. Thought and experience are required to distinguish structure from artifact. It is said that Galileo (1564-1642) had his associates first look through his telescope- microscope at very familiar objects to convince them that the image was a true representation of the object. Then he would have them proceed to hitherto unknown worlds too far or too small to be seen with the un- aided eye. Since Galileo‘s time, light microscopes have been improved so much that performance is now very close to theoretical limits. Electron microscopes have been developed in the last four decades to exhibit thousands of times the resolving power of the light microscope. Through the news media everyone is made aware of the marvelous microscopi
Pindex Book 1978
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Field-Emission Microscopes,ld-emission of . from the . charged tip of a very sharp needle in a vacuum by point-projection of the image onto a positively charged, fluorescent screen. The device is a specialized cathode-ray tube (Figure 14.2).. The newer device (1950) emits . from an ..
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X-Ray Microscopy,ive materials. For example, when a dentist takes a radiograph he places an unexposed photosensitive film next to the teeth and turns on the x-rays. Cavities show up dark on the negative film because they transmit x-rays so well. Sound teeth show up less dark because they are denser than air or flesh
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Physikalische Eigenschaften der Luftns in . or . rather than by differential refraction, absorption, or reflection (as is the case with light or electrons). Consequently, a whole new microscopical area of structural information is now open for correlation with properties or behavior and composition or treatment.
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simply an aid to the eye; to them microscopy is primarily an expan- sion of macroscopy. In actuality, microscopy is both objective and sub- jective; it is seeing through an instrument by means of the eye, and more importantly, the brain. The function of the brain is to interpret the eye‘s image in t
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